AUTHOR=Kan Kan , Deng Zhiqun Daniel , Cheng Yongguang , Guo Pengcheng , Zhou Daqing TITLE=Editorial: Internal flow mechanism of modern hydraulic machinery JOURNAL=Frontiers in Energy Research VOLUME=10 YEAR=2023 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.1096541 DOI=10.3389/fenrg.2022.1096541 ISSN=2296-598X